Can someone find the area of this rectangle please?x

72 cm^2

Step-by-step explanation:

If the Length is twice the Width, then W = W and L = 2W.

The perimeter formula is P = 2W + 2L, which here is:

                                      36    = 2W + 2(2W), or

                                        36 = 2W + 4W = 6W; then W = 6 and L = 12.

The area formula is A = L * W, which here is:

A = 6*12 = 72 cm^2

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).